Abstract: The present invention relates generally to a shirred concertina formed from a seamless, tubular foodstuff casing that is tied-off at one end, and has an outer surface provided with a coating or impregnation including a food additive. The tied-off end of the present casing is turned back inwardly, into the hollow cavity formed by the concertina. Concertinas of the present invention are particularly adapted for use with automatic sausage filling, portioning, and clipping machines.

Abstract: A tube-shaped food wrapper is disclosed, particularly a sausage wrapper, comprising at least two layers. The inner layer facing the food is provided with a matrix made of an organic, thermoplastic polymer material and a powdered organic filler which is embedded therein and contains a food additive that can be transferred to the filling material. The organic filler preferably consists of a carrageenan powder while the food additive preferably consists of a liquid smoke. At least one additional layer has barrier properties, i.e. is provided with a reduced permeability to water vapor and/or atmospheric oxygen. Layers based on polyolefin or polyamide are particularly suitable for the addtional layer(s).

Abstract: The invention relates to a tubular double food casing. It comprises an outer barrier casing and an inner casing having at least one coloring, aroma substance and/or flavoring which is transferred to the food. It further relates to a shirred stick made of two successive segments, the first segment consisting of the shirred barrier casing and the second consisting of the shirred inner casing and the deshirred, or non-shirred, start of the second casing being passed through the cavity of the first segment and fixed to the start of the barrier casing.

Abstract: A seamless, tubular food casing produced by extrusion or coextrusion, wherein at least one layer of the casing comprises a mixture of: a) thermoplastic starch and/or a thermoplastic starch derivative and b) at least one further polymer, in which the further polymer is a homopolymer or copolymer comprising at least one selected from the group consisting of hydroxycarboxylic acid units, a poly(ester urethane), a poly(ether urethane), a poly(ester ether urethane) and a poly(alkylene carbonate) of the formula —[CHR1—CHR2—O—CO—O—]n, where R1 and R2 independently of one another are a hydrogen atom or a (C1-C4)alkyl group and n is an integer from 10 to 5000, and wherein the casing carries internally at least one transferable coloring, aroma substance and/or flavoring.

Abstract: The invention relates to a process for the treatment, in particular for the roughening, of the surface of hydrated cellulose shaped articles, in which at least one cellulase is allowed to act on the surface and is then inactivated permanently. The tubular films modified in this way are particularly suitable as foodstuff casings, specifically as sausage casings.

Abstract: The invention relates to a tubular food casing, one surface of which has a continuous layer which is solid under standard conditions of temperature and pressure, prepared from a mixture made from a wax solid under these conditions and/or from a wax-like component, from a liquid smoke, and from an emulsifier with the aid of which a stable water-in-oil emulsion can be formed. The layer adheres firmly to the casing and is also flexible, so that the outer side of the casing can be turned inside out without difficulty. When the sausages produced therewith are cooked or scalded, the wax or the wax-like component melts so that the liquid smoke can migrate onto the surface of the meat emulsion and there produce the desired characteristics of smoking.

Abstract: The present invention relates generally to a shirred concertina formed from a seamless, tubular foodstuff casing that is tied-off at one end, and has an outer surface provided with a coating or impregnation including a food additive. The tied-off end of the present casing is turned back inwardly, into the hollow cavity formed by the concertina. Concertinas of the present invention are particularly adapted for use with automatic sausage filling, portioning, and clipping machines.

Abstract: A food casing based on cellulose hydrate, which is preferably used as a sausage casing, in addition to cellulose hydrate, includes a copolymer having units of methyl vinyl ether and maleic acid and/or alkali metal maleate. It can additionally contain further polymers.